CVE-2019-8559: High severity Apple tvOS vulnerability

Published Mar 25, 2019
·
Updated

Last updated 25 August 2025

Other sources

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

— Launchpad

Processing maliciously crafted web content may lead to arbitrary code execution. Multiple memory corruption issues were addressed with improved memory handling.

Reference: https://webkitgtk.org/security/WSA-2019-0002.html https://wpewebkit.org/security/WSA-2019-0002.html

— Red Hat

WebKit. Multiple memory corruption issues were addressed with improved memory handling.

Credit

dwfault(ADLab of Venustech), Samuel Groß(Google Project Zero), Apple, G. Geshev(Trend Micro Zero Day Initiative), found by OSS-Fuzz

Affected Software

26 affected componentsFixes available
redhat/webkitgtk<2.24.0
2.24.0
Apple tvOS<12.2
12.2
Apple WatchOS<5.2
5.2
Apple iCloud for Windows<7.11
7.11
Apple iTunes for Windows<12.9.4
12.9.4
Apple Safari<12.1
12.1
Apple iOS<12.2
12.2
Apple Icloud Windows<7.11
Apple Itunes Windows<12.9.4
Apple Safari<12.1
Apple iPhone OS<12.2
Apple tvOS<12.2
Apple WatchOS<5.2
debian/webkit2gtk
2.44.2-1~deb11u12.50.4-1~deb11u12.50.4-1~deb12u12.50.4-1~deb13u12.50.5-1
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0
alpine/webkit2gtk<2.24.1-r0
2.24.1-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/webkitgtk to a version that resolves this vulnerability.

    Fixed in 2.24.0
  2. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 12.2
  3. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 5.2
  4. Upgrade

    Upgrade Apple iCloud to a version that resolves this vulnerability.

    Fixed in 7.11
  5. Upgrade

    Upgrade iTunes to a version that resolves this vulnerability.

    Fixed in 12.9.4
  6. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 12.1
  7. Upgrade

    Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.

    Fixed in 12.2
  8. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.44.2-1~deb11u1Fixed in 2.50.4-1~deb11u1Fixed in 2.50.4-1~deb12u1Fixed in 2.50.4-1~deb13u1Fixed in 2.50.5-1
  9. Upgrade

    Upgrade alpine/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.24.1-r0
  10. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 12.2
  11. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 5.2
  12. Upgrade

    Upgrade iTunes for Windows to a version that resolves this vulnerability.

    Fixed in 12.9.4
  13. Upgrade

    Upgrade iCloud for Windows to a version that resolves this vulnerability.

    Fixed in 7.11

Event History

Dec 18, 2019
CVE Published
via MITRE·05:33 PM
Data Sourced
via MITRE·05:33 PM
DescriptionWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·06:15 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2019-8559?

The severity of CVE-2019-8559 is high with a severity value of 8.8.

2

Which Apple products are affected by CVE-2019-8559?

CVE-2019-8559 affects iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, and iCloud for Windows 7.11.

3

What is the vulnerability description of CVE-2019-8559?

CVE-2019-8559 is a vulnerability in WebKit that allows arbitrary code execution by processing maliciously crafted web content.

4

How can I fix CVE-2019-8559?

To fix CVE-2019-8559, update your Apple products to the fixed versions: iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, and iCloud for Windows 7.11.

5

Where can I find more information about CVE-2019-8559?

You can find more information about CVE-2019-8559 on the Apple support page (https://support.apple.com/en-us/HT209599) and the CVE Mitre page (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8559).

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203